Institut für Numerische Mathematik

Institut für Numerische Mathematik (Math D)
Dipl.-Math. Christian Kühn

Currently I am employed at	Technische Universität Hamburg Institut für Mathematik (E-10) Lehrstuhl Angewandte Analysis Am Schwarzenberg-Campus 3, Gebäude E 21073 Hamburg Germany
Phone	+49 40 42878 3469
Telefax	+49 40 42878 2696
Room	3.093
E-Mail	christian.kuehn (at) tuhh.de

Scientific interests:
Elliptic differential operators Extension theory of symmetric operators Schrödinger operators with δ-interactions Quantum graphs
Projects:
Scientific co-operation project Austria-Czech Republic 2013 - 2014, project CZ01/2013. Schrödinger operators and singular perturbations (FWF project 25162-N26)
Teaching Summer Term 2016
Exercise class Partielle Differentialgleichungen und Randwertprobleme Previous teaching
Publications

Refereed publications
Jussi Behrndt, Rupert L. Frank, Christian Kühn, Vladimir Lotoreichik and Jonathan Rohleder Spectral theory for Schrödinger operators with δ-interactions supported on curves in ℝ³ Ann. Henri Poincaré 18 (2017), 1305–1347. (doi:10.1007/s00023-016-0532-3). Jaroslav Dittrich, Pavel Exner, Christian Kühn, and Konstantin Pankrashkin On eigenvalue asymptotics for strong delta-interactions supported by surfaces with boundaries Asymptot. Anal. 97 (2016), 1–25. arXiv.
Submitted papers
Christian Kühn and Jonathan Rohleder Visibility of quantum graph spectrum from the vertices submitted; arXiv.
Conference proceedings
Jussi Behrndt, Christian Kühn, and Jonathan Rohleder Eigenvalues of Schrödinger operators and Dirichlet-to-Neumann maps, Proc. Appl. Math. Mech. 13 (2013), 517-518. Jussi Behrndt, Christian Kühn, and Jonathan Rohleder Selfadjoint Schrödinger operators on the half-space with compactly supported Robin boundary conditions, Proc. Appl. Math. Mech. 11 (2011), 885–886.